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Sveta_85 [38]
3 years ago
9

Lcm of 15 and 20 least common multiple

Mathematics
1 answer:
kotykmax [81]3 years ago
3 0
<span>The multiples of 15 are :15,30,45,60,75,90,105
</span>The multiples of  20 are:20,40,60,80,100
<span>and there is a match at  60
</span>
you could also try <span>short division</span>
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denis23 [38]
<h2>Answer: 2.8 miles</h2>

Step-by-step:

We can write it in the proportion \frac{7}{60} = \frac{x}{24}

where x is our number of miles trying to find

We now cross multiply or use the butterfly method which I will demonstrate both

<h3>Cross Multiply</h3>

We multiply the numerator with the dominator

so 7 multiplied by 24

and 60 multiplied by x

7*24=60x

168=60x

\frac{168}{60} =\frac{60x}{60}

2.8=x or x=2.8

Now for the

<h3>Butterfly Method </h3>

You would do 7 times 24 divided by 60 or \frac{7*24}{60}

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valkas [14]

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as required.

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Step-by-step explanation:

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